Thanks for this interesting post Duncan. In recent work I've done with Lant Pritchett and Matt Andrews, we've called this new approach PDIA: Problem-Driven Iterative Adaption. (See Working Paper No. 299 at the Center for Global Development. Our approach has elements closely aligned with those you've listed.) We are open to a better name, but let's acknowledge that we are trying to name the same broad thing and settle on something so that the alternative to prevailing orthodoxy at least has a name.